21194356

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{827}}^1$

素因数の和:1023

約数の個数: 24

約数和(自身を含む): 38253600

約数和(自身を除く): 17059244

約数列:

[1, 2, 4, 43, 86, 149, 172, 298, 596, 827, 1654, 3308, 6407, 12814, 25628, 35561, 71122, 123223, 142244, 246446, 492892, 5298589, 10597178, 21194356]

約数ペア:

[(1, 21194356), (2, 10597178), (4, 5298589), (43, 492892), (86, 246446), (149, 142244), (172, 123223), (298, 71122), (596, 35561), (827, 25628), (1654, 12814), (3308, 6407)]